Mountain Crest Acquisition 6 (MCAHU) CEO discloses 2.96M indirect shares

Rhea-AI Filing Summary

Mountain Crest Acquisition 6 Corp. director, CEO and CFO Suying Liu has filed an initial ownership report showing indirect holdings of the company’s ordinary shares. The filing reports 2,957,143 ordinary shares owned by Mountain Crest Holdings 6 LLC, the company’s sponsor entity.

The filing states that Dr. Liu controls Mountain Crest Holdings 6 LLC and therefore may be deemed to share beneficial ownership of these shares, but he disclaims beneficial ownership beyond any pecuniary interest. This is a disclosure of existing indirect holdings rather than a new buy or sell transaction.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Liu Suying

Role CEO and CFO

Type	Security	Shares	Price	Value
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 2,957,143 shares (Indirect, See Footnote)

Footnotes (1)

1. [object Object]

Key Figures

Indirect ordinary shares reported: 2,957,143 shares

1 metrics

Indirect ordinary shares reported 2,957,143 shares Total ordinary shares following holding entry on Form 3

Key Terms

beneficial ownership, pecuniary interest, indirect ownership, Ordinary Shares, +1 more

5 terms

beneficial ownership financial

"he may be deemed to have or share beneficial ownership of the ordinary shares"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest"

indirect ownership financial

"total_shares_following_transaction 2,957,143 with ownership_type marked as indirect"

Ordinary Shares financial

"security_title listed as Ordinary Shares for the reported holding"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

LLC financial

"shares owned by Mountain Crest Holdings 6 LLC (the "Sponsor")"

A limited liability company (LLC) is a legal business structure that shields owners’ personal assets from the company’s debts and legal claims while letting the business operate with flexible management rules. For investors, an LLC matters because it changes how risk, taxes and ownership transfers work—profits often flow through to owners’ personal tax returns and liability is typically limited, so investing in an LLC is like putting a financial firewall between your personal finances and the business.

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Liu Suying

(Last) (First) (Middle)

C/O MOUNTAIN CREST ACQUISITION 6 CORP.,

524 BROADWAY, 11TH FLOOR,

(Street)

NEW YORK NEW YORK 10012

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
04/29/2026

3. Issuer Name and Ticker or Trading Symbol
Mountain Crest Acquisition 6 Corp. [ MCAH ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	CEO and CFO

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary Shares	2,957,143	I	See Footnote(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Consists of 2,957,143 shares owned by Mountain Crest Holdings 6 LLC (the "Sponsor"). Dr. Suying Liu controls Mountain Crest Holdings 6 LLC. As such, he may be deemed to have or share beneficial ownership of the ordinary shares held directly by Mountain Crest Holdings 6 LLC. Suying Liu disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

	/s/ Suying Liu	04/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does Liu Suying report owning in Mountain Crest Acquisition 6 Corp (MCAHU)?

Liu Suying reports indirect beneficial ownership of 2,957,143 ordinary shares. These shares are held by Mountain Crest Holdings 6 LLC, the sponsor entity he controls, and are disclosed on a Form 3 as his initial statement of beneficial ownership.

Are the Mountain Crest (MCAHU) shares held directly by Liu Suying?

No, the 2,957,143 ordinary shares are held by Mountain Crest Holdings 6 LLC. The filing explains that this sponsor LLC owns the shares directly, while Liu controls the LLC and may be deemed to share beneficial ownership through that structure.

Does the Mountain Crest (MCAHU) Form 3 show any insider buying or selling?

No, the Form 3 records an existing indirect holding, not a new trade. The transaction section classifies the entry as a holding with no buy or sell code, reflecting Liu’s previously established position through the sponsor LLC.

Why does Liu Suying disclaim beneficial ownership in the Mountain Crest (MCAHU) filing?

He disclaims beneficial ownership beyond his pecuniary interest in the shares. The footnote states that although he controls the sponsor LLC and may be deemed to share beneficial ownership, he only acknowledges economic interest to the extent of his direct or indirect stake.

How many Mountain Crest (MCAHU) shares are reported after the Form 3 holding entry?

The Form 3 shows 2,957,143 ordinary shares following the reported holding. These shares are attributed to Mountain Crest Holdings 6 LLC, with Liu’s ownership characterized as indirect and described in detail in the accompanying footnote.